641709018428334 has 32 divisors (see below), whose sum is σ = 1297875447108000. Its totient is φ = 211493574741504.

The previous prime is 641709018428237. The next prime is 641709018428353. The reversal of 641709018428334 is 433824810907146.

641709018428334 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1654752 + ... + 35863020.

It is an arithmetic number, because the mean of its divisors is an integer number (40558607722125).

Almost surely, 2^{641709018428334} is an apocalyptic number.

641709018428334 is an abundant number, since it is smaller than the sum of its proper divisors (656166428679666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

641709018428334 is a wasteful number, since it uses less digits than its factorization.

641709018428334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34243492.

The product of its (nonzero) digits is 27869184, while the sum is 60.

The spelling of 641709018428334 in words is "six hundred forty-one trillion, seven hundred nine billion, eighteen million, four hundred twenty-eight thousand, three hundred thirty-four".